Did you know that the Rocky Mountains contain more oil than Saudi Arabia? Most people don’t. The problem is that, unlike the easily accessed and processed oceans of liquid oil under Middle Eastern sands, the Rocky Mountains’ petroleum is found in rocks called oil shale. Oil shale, which must be mined, is a type of sedimentary rock that releases oil when heated in specific types of chemical processes. The problem, according to environmental groups, is that producing energy from oil shale is even less environmentally friendly than using normal, liquid oil or even coal.
